Glossary Letter T

Top plate

Top horizontal member of a frame wall supporting ceiling joists, rafters, or other members.

T & G, tongue and groove

A joint made by a tongue (a rib on one edge of a board) that fits into a corresponding groove in the edge of another board to make a tight flush joint. Typically, the subfloor plywood is T & G.

Tab

The exposed portion of strip shingles defined by cutouts.

Tail beam

A relatively short beam or joist supported in a wall on one end and by a header at the other.

Take off

The material necessary to complete a job.

Taping

The process of covering drywall joints with paper tape and joint compound.

T bar

Ribbed, "T" shaped bars with a flat metal plate at the bottom that are driven into the earth. Normally used chain link fence poles, and to mark locations of a water meter pit.

Teco

Metal straps that are nailed and secure the roof rafters and trusses to the top horizontal wall plate. Sometimes called a hurricane clip.

Tee

A "T" shaped plumbing fitting.

Tempered

Strengthened. Tempered glass will not shatter nor create shards, but will "pelletize" like an automobile window. Required in tub and shower enclosures and locations, entry door glass and sidelight glass, and in a windows when the window sill is less than 16" to the floor.

Termites

Wood eating insects that superficially resemble ants in size and general appearance, and live in colonies.

Termite shield

A shield, usually of galvanized metal, placed in or on a foundation wall or around pipes to prevent the passage of termites.

Terra cotta

A ceramic material molded into masonry units.

Thermoply ™

Exterior laminated sheathing nailed to the exterior side of the exterior walls. Normally ¼ " thick, 4 X 8 or 4 x 10 sheets with an aluminumized surface.

Thermostat

A device which relegates the temperature of a room or building by switching heating or cooling equipment on or off.

Three-dimensional shingles

Laminated shingles. Shingles that have added dimensionality because of extra layers or tabs, giving a shake-like appearance. May also be called "architectural shingles".

Threshold

The bottom metal or wood plate of an exterior door frame. Generally they are adjustable to keep a tight fit with the door slab.

Time and materials contract

A construction contract which specifies a price for different elements of the work such as cost per hour of labor, overhead, profit, etc. A contract which may not have a maximum price, or may state a 'price not to exceed'.

Tinner

Another name for the heating contractor.

Tip up

The downspout extension that directs water (from the home's gutter system) away from the home. They typically swing up when mowing the lawn, etc.

Title

Evidence (usually in the form of a certificate or deed) of a person's legal right to ownership of a property.

TJI or TJ

Manufactured structural building component resembling the letter "I". Used as floor joists and rafters. I-joists include two key parts:flangesandwebs. Theflangeor from of the I joist may be made of laminated veneer lumber or dimensional lumber, usually formed into a 1 ½" width. Thewebor center of the I-joist is commonly made of plywood or oriented strand board (OSB). Large holes can be cut in the web to accommodate duct work and plumbing waste lines. I-joists are available in lengths up to 60'' long.

Toenailing

To drive a nail in at a slant. Method used to secure floor joists to the plate.

Top chord

The upper or top member of a truss.

Top plate

Top horizontal member of a frame wall supporting ceiling joists, rafters, or other members.

Transmitter (garage door)

The small, push button device that causes the garage door to open or close.

Trap

A plumbing fitting that holds water to prevent air, gas, and vermin from backing up into a fixture.

Tread

The walking surface board in a stairway on which the foot is placed.

Treated lumber

A wood product which has been impregnated with chemical pesticides such as CCA (Chromated Copper Arsenate) to reduce damage from wood rot or insects. Often used for the portions of a structure which are likely to be in contact with soil and water. Wood may also be treated with a fire retardant.

Trim (plumbing, heating, electrical)

The work that the "mechanical" contractors perform to finish their respective aspects of work, and when the home is nearing completion and occupancy.

Trim- Interior

The finish materials in a building, such as moldings applied around openings (window trim, door trim) or at the floor and ceiling of rooms (baseboard, cornice, and other moldings). Also, the physical work of installing interior doors and interior woodwork, to include all handrails, guardrails, stair way balustrades, mantles, light boxes, base, door casings, cabinets, countertops, shelves, window sills and aprons, etc.Exterior

Trimmer

The vertical stud that supports a header at a door, window, or other opening.

Truss

An engineered and manufactured roof support member with "zig-zag" framing members. Does the same job as a rafter but is designed to have a longer span than a rafter.

Tub trap

Curved, "U" shaped section of a bath tub drain pipe that holds a water seal to prevent sewer gasses from entering the home through tubs water drain.

Turnkey

A term used when the subcontractor provides all materials (and labor) for a job.

Turpentine

A petroleum, volatile oil used as a thinner in paints and as a solvent in varnishes